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Thread: Question about Coil Whine

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    Default Question about Coil Whine

    Hello everybody,

    I recently changed my pc with z97a gaming 7 motherboard, msi geforce gtx 970, 16 GB RAM and i7 4790K. My PSU was not changed and is: XIGMATEK (NRP-PC702). 80+ bronze 700W. I think is pretty old by now.

    Well, the problema I encounter i the following. When i play games at high fps (80+) I hear what I think is coil whine. The higher the fps are the higher i hear coil whine. So this is pretty disturbing and I would like to change my PSU, what are the recommendations for it or what should i change in BIOS or whatever to solve the problem. I must add I did not hear anything with my previous build even if I had high fps.

    Thank you very much

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    It's probably the graphics card.

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    Thanks for responses, it is definitively the PSU as i have heard it myself and other friends have heard it there too.

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    The PSU can make the sound because of the graphics card.

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    How is that?

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    It's a two way relationship - a resonance - between the GPU's VRM and the PSU's regulation loop.
    Careful what you wish for... You just might get it.

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    Thank you for that McSteel, what is the solution?

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    I think it's the graphics card, because a GTX 970 is known for coil whine and because you didn't had it before with your PSU.

    But the easiest way is to test with a different graphics card and PSU.

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    Quote Originally Posted by -The_Mask- View Post
    I think it's the graphics card, because a GTX 970 is known for coil whine and because you didn't had it before with your PSU.

    But the easiest way is to test with a different graphics card and PSU.
    Hmm, according to a past experience of mine, there are exceptions to your remark (*although it's very logical).
    I have stated my experience with my SS X-650's strange "behaviour" here:
    http://www.jonnyguru.com/forums/show...t=11960&page=4
    CPU:Athlon 64 FX60 (2-cores) 2,6GHz
    Mobo:Asrock 939a785g
    cpu cooler:ArcticFreezer13 CO
    RAM:4 GB DDR 400MHz
    GPU:Asus 750 Ti 2GB
    PSU:Seasonic Platinum 660
    Monitor:Asus VE228HR
    Tower:Coolermaster Elite 430

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    Quote Originally Posted by Raistlol View Post
    Thank you for that McSteel, what is the solution?
    You may try altering the resonance, with tricks/mods like this: http://www.overclock.net/t/1180276/g...#post_18003703
    Best, Luca

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